Home News Links Search Contact Lighting Equipment A B C D E F G H I J K L M N O P Q R S T U V W X Y Z   QSP optical technology We manufacture the most spectrally pure Dichroic Filters, perfectly color matched for the most demanding, long lasting, theater and architectural requirements. Quickbeam systems, Inc. We carry a full line of Professional Audio, Stage Lighting, Architectural Lighting and Staging products for you to choose from. Copyright ©1999-2001 DJ Programs, All rights reserved.